One rose changes a young woman's solitary life forever. After setting out on her own, Marion Warren is overcome with drab routine. Her solution: buy a season ticket to the symphony. But to Marion's surprise, each night she finds a mysterious crimson rose—and no sign of who left it. Then wealthy Jefferson Lyman whisks into Marion's already up-turned world, bringing with him socialite Isabel Cresson. Jefferson sets out to win Marion's heart...but Isabel's dangerous envy may thwart his chances altogether.